/*
		Timer by Algorithm
		http://www.codingforums.com/archive/index.php/t-10531.html
	*/
	function Timer(){
		this.obj = (arguments.length)?arguments[0]:window;
		return this;
	}
	
	// The set functions should be called with:
	// - The name of the object method (as a string) (required)
	// - The millisecond delay (required)
	// - Any number of extra arguments, which will all be
	// passed to the method when it is evaluated.
	
	Timer.prototype.setInterval = function(func, msec){
		var i = Timer.getNew();
		var t = Timer.buildCall(this.obj, i, arguments);
		Timer.set[i].timer = window.setInterval(t,msec);
		return i;
	}
	Timer.prototype.setTimeout = function(func, msec){
		var i = Timer.getNew();
		Timer.buildCall(this.obj, i, arguments);
		Timer.set[i].timer = window.setTimeout("Timer.callOnce("+i+");",msec);
		return i;
	}
	
	// The clear functions should be called with
	// the return value from the equivalent set function.
	Timer.prototype.clearInterval = function(i){
		if(!Timer.set[i]) return;
		window.clearInterval(Timer.set[i].timer);
		Timer.set[i] = null;
	}
	Timer.prototype.clearTimeout = function(i){
		if(!Timer.set[i]) return;
		window.clearTimeout(Timer.set[i].timer);
		Timer.set[i] = null;
	}
	
	// Private data
	Timer.set = new Array();
	Timer.buildCall = function(obj, i, args){
		var t = "";
		Timer.set[i] = new Array();
		if(obj != window){
			Timer.set[i].obj = obj;
			t = "Timer.set["+i+"].obj.";
		}
		t += args[0]+"(";
		if(args.length > 2){
			Timer.set[i][0] = args[2];
			t += "Timer.set["+i+"][0]";
			for(var j=1; (j+2)<args.length; j++){
				Timer.set[i][j] = args[j+2];
				t += ", Timer.set["+i+"]["+j+"]";
			}
		}
		t += ");";
		Timer.set[i].call = t;
		return t;
	}
	Timer.callOnce = function(i){
		if(!Timer.set[i]) return;
		eval(Timer.set[i].call);
		Timer.set[i] = null;
	}
	Timer.getNew = function(){
		var i = 0;
		while(Timer.set[i]) i++;
		return i;
	}